Nintendo 3DS ROM Tools

Tools and guides for working with Nintendo 3DS games and applications (.3ds, .cci, .app, .cxi, .cfa, .cia)

There exist some work-in-progress guides at this repository's Wiki: https://github.com/ihaveamac/3DS-rom-tools/wiki

See this list of other tools that might be useful: https://github.com/ihaveamac/3DS-rom-tools/wiki/List-of-useful-tools

RSF generation - /rsfgen

• rsfgen.py - Generates a .rsf, using a .3ds/.cci, decrypted ExHeader, and a template RSF (original source)
• rsfgen_cia.py - Modified rsfgen, generates a .rsf, using a decrypted CIA and a template RSF
• rsfgen_exh.py - Modified rsfgen, generates a .rsf only using decrypted ExHeader and a template RSF; does not automatically get CompanyCode, ProductCode, or UniqueId
• dummy.rsf - Template RSF for use with rsfgen; must have DOS line endings (CR LF, try unix2dos if your generated rsf looks strange) (original source)
• dummy.rsf.zip - Archived-form of dummy.rsf, as an easy way to download this file with the proper line endings

Downloading - /downloading

• TitleDownloader.py - download update files from Nintendo CDN; requires make_cdn_cia in the user's PATH (original source)

Seed database - /seeddb

• seeddb.bin - contains seeds for games using seed crypto introduced in 9.6.0-24
• List of games and title IDs that use seed crypto